The roof spoiler for the SportCombi (Wagon), where a Saab innovation from 1961 was put to use again in a modernized form. The top surface of the air-slicing roof spoiler directs the airflow upwards, generating improved rear stability.

In addition, an air slot directs a small portion of the airflow down onto the rear windows, thus reversing the semi-stationary vortex behind the car and thereby reducing the wake and the associated aerodynamic drag, while also helping to keep the rear screen clean.

In order to create an optimal combination of drag and stability Hirsch design was extensively tweaked and tested in the MIRA wind tunnel.

Replica of Hirsch roof spoiler for SAAB 9-5 Estate was last modified: September 28th, 2015 by Goran Aničić